# 357 Trying to do a Lookup While a Transaction is Active Causes a Lock Timeout

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The following command is locking up my system:

RefAttorneyDisburseID := dmLookUps.tblDisburse.LookUp('PaymentID;AttorneyID',VarArrayOf([tblDisbursementsPaymentID.Value, RefAttorney]),'DisburseID');

tblDisburse in dmLookUps and tblDisbursements on the current form both point to the same physical table. This command is being given from inside a transaction in which a record has already been added to the tblDisbursements (in fact, it's the record that should match the lookup).